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MANUAL
HTC 500
Translation of manual in original language
Contact Information
HTC Sweden AB
Box 69
SE-614 22 Söderköping - Sweden
Tel: +46 (0) 121-294 00
Fax: +46 (0) 121-152 12
You can find addresses for our retailers and service partners on our website:
www.htc-floorsystems.com
Always specify the model and serial number when asking questions about your product.
Trademarks
HTC is a trademark owned by HTC Sweden AB. Other names and products mentioned
in this manual may be registered trademarks owned by the relevant companies.
© 2007 HTC Sweden AB. All rights reserved.
EC Declaration of conformity
Manufacturer:
HTC Sweden AB
Box 69
SE-614 22 Söderköping
Sweden
+46 (0)121-29400
Type of equipment:
Grinding machine
Make:
HTC
Model:
HTC 500
Year of manufacture:
See machine name plate
Serial number:
See machine name plate
As the manufacturer, we hereby declare under our sole responsibility that the above
product with serial numbers from 2004 onward conforms to the applicable regulations
in directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC. The following
standards have been used as a basis: ISO 5349-1:2001, ISO 5349-2:2001, ISO
20643:2005, ISO 3741.
This product was CE-marked in 1997. The technical documentation is available from
the manufacturer.
Original of the EC declaration of conformity (Swedish). Other languages are
translations of the original of the EC declaration of conformity.
Söderköping, 01-01-2010
Peter Lundgren
Development Manager,
HTC Sweden AB
Kåre Kilgren
Product Manager,
HTC Sweden AB
HTC 500
Table of contents
1
2
3
Introduction
1
1.1 General ............................................................................
1.2 Responsibility ..................................................................
1.3 Manual .............................................................................
1.3.1 Safety instructions – Explanation of symbols .....
1.4 Transportation .................................................................
1.5 On delivery ......................................................................
1.6 Unpacking the machine ...................................................
1.7 Machine name plate ........................................................
1.8 Handling and storage ......................................................
1.9 Vibration and noise ..........................................................
1.9.1 Hand and arm vibrations ....................................
1.9.2 Sound pressure level ..........................................
1
1
1
1
2
2
2
3
3
3
4
4
Safety
5
2.1 General Information .........................................................
2.2 Warnings .........................................................................
2.3 Notes ...............................................................................
5
5
6
Machine description
8
3.1 General machine description ........................................... 8
3.2 Description of controls – Control panel ........................... 10
4
Usage
12
4.1
4.2
4.3
4.4
4.5
12
12
13
14
15
16
17
17
18
19
19
19
19
20
4.6
4.7
4.8
4.9
General Information .........................................................
Handle settings ................................................................
Handling weights .............................................................
Access to grinding tools ..................................................
Fitting and replacing grinding tools ..................................
4.5.1 Fitting grinding tools ...........................................
4.5.2 Changing grinding tools ......................................
Preparations for dry grinding ...........................................
Preparations for wet grinding ..........................................
Operation .........................................................................
4.8.1 Standby ..............................................................
4.8.2 Emergency stop switch ......................................
4.8.3 Starting the machine ..........................................
Making operation easier ..................................................
i
Table of contents
5
6
HTC 500
Maintenance and repairs
21
5.1
5.2
5.3
5.4
5.5
5.6
5.7
21
21
21
21
22
22
22
General Information .........................................................
Cleaning ..........................................................................
Daily ................................................................................
Every week ......................................................................
Every month (or 100 hours) .............................................
Repairs ............................................................................
Spare parts ......................................................................
Faultfinding
23
6.1 General Information .........................................................
6.1.1 The machine will not start ...................................
6.1.2 The machine vibrates or wears the tool
unevenly .............................................................
6.1.3 The machine is grinding at an angle ..................
6.1.4 The machine stops during operation ..................
6.1.5 The fuses trip frequently .....................................
6.1.6 The machine cannot cope ..................................
23
23
Electronic error codes
25
7.1 General Information .........................................................
7.2 Hitachi SJ200 ..................................................................
7.2.1 Resetting the frequency converter .....................
7.2.2 Checking the last error code ..............................
7.3 Omron MX2 .....................................................................
7.3.1 Resetting the frequency converter .....................
7.3.2 Checking the last error code ..............................
25
25
26
26
26
27
27
8
Technical data
28
9
Environment
30
7
10 Warranty and CE marking
23
23
23
24
24
31
10.1 Warranty .......................................................................... 31
10.2 CE marking ...................................................................... 31
ii
HTC 500
Introduction
1
Introduction
1.1
General
HTC 500 is a grinder that can be used to grind, strip, clean and polish concrete, natural
stone and terrazzo floors. The machine's area of application depends on the choice of
tool.
Read the manual carefully, so you are totally familiar with the machine before you start
to use it. Contact your local retailer for further information. For contact information, see
Contact Information at the start of the manual.
1.2
Responsibility
Even though every effort has been made to make this manual as complete and accurate
as possible, we bear no responsibility for incorrect or missing information. HTC
reserves the right to change descriptions in this manual without giving prior notice.
This manual is protected by the Copyright Act and no part of it may be copied or used
in any other way without the written approval of HTC.
1.3
Manual
In addition to the general functions, this manual deals with the areas of application and
the maintenance of the grinder.
1.3.1
Safety instructions – Explanation of symbols
A number of symbols are used in the manual to highlight the most important sections,
see below. In order to avoid both personal injury and material damage as far as possible,
it is extremely important to read and understand the text next to these symbols
particularly carefully. There are other symbols indicating practical tips. These are to
help you use the machine in the easiest and most effective way.
The following symbols are used in the document to indicate where special attention is
needed.
Warning!
This symbol means Warning! and indicates that incorrect use can result in
material damage to the machine or accessories. If you see this symbol next to a
section of text, you must be particularly careful when reading through the text
and not carry out any stages of which you are unsure. This is to protect you and
other users and to avoid damaging the machine or other equipment.
1.0
1
Introduction
HTC 500
Note!
This symbol means Note! and indicates that material damage can occur if the
machine or its accessories are used incorrectly. If you see this symbol next to a
section of text, you must be particularly careful when reading through the text
and not carry out any stages of which you are unsure. This is to avoid damage
to the machine or other equipment.
Tip!
This symbol means Tip! and indicates that you can get tips and advice on ways
to make operating your machine or associated equipment easier, and to avoid
wear. When you see this symbol you should read the accompanying text to
facilitate your work and increase the service life of the machine.
1.4
Transportation
The machine is best transported securely fastened to a pallet.
1.5
On delivery
The following items are included in the delivery. Contact you retailer if anything is
missing.
1.6
•
Grinding machine
•
Manual
•
Locking key for control cabinet
•
Hammer EZ system
•
Splash guard
Unpacking the machine
Warning!
Read through the safety instructions and the manual carefully before use.
•
•
2
Check carefully to see if the packaging or machine has been damaged during
delivery. If there is any sign of damage, contact your retailer and report it. Report
packaging damage to the transport company as well.
Check that the delivery matches the order. If there are any discrepancies, contact
your retailer.
1.0
HTC 500
1.7
Introduction
Machine name plate
The machine name plate provides the following information. The model and serial
number must be specified when ordering spare parts for the machine.
Figure 1-1. Machine name plate
1.8
1.
Model
2.
Model number
3.
Serial number
4.
Year of manufacture
5.
Power (kW)
6.
Voltage (V)
7.
Current (A)
8.
Frequency (Hz)
9.
Rotational speed (r.p.m.)
10.
Weight (kg)
11.
Address field
Handling and storage
The machine should be stored in a dry, warm location when not in use. Otherwise it may
become damaged by condensation and coldness.
1.9
Vibration and noise
Warning!
Always use ear muffs when using the machine.
1.0
3
Introduction
1.9.1
HTC 500
Hand and arm vibrations
Hand and arm weighted vibration level [m/s²] for HTC 500 have been measured with
equipment approved according to ISO 5349-1:2001. The measurement uncertainty for
the measurement apparatus has been measured as +/- 2%.
The machine has been tested in accordance with ISO 5349-2:2001 and ISO 20643:2005
in order to identify the operations that contribute to the most frequent vibration
exposures. At vibration levels > 2.5 m/s², the exposure time should be limited in
accordance with the table below. For vibration levels > 5 m/s², immediate measures
should be taken by the employer to ensure that the exposure time does not exceed the
time specified in the table below.
Identified work conditions Measured values [m/s²] Daily permitted exposure
(number of hours)
1.9.2
Grinding/polishing
2,76
unlimited
Floor preparation (T-rex)
5,4
5,12
Sound pressure level
This machine has been tested for noise in accordance with ISO 3741. For information
on sound pressure levels, see the table in chapter Technical data, page 28.
4
1.0
HTC 500
Safety
2
Safety
2.1
General Information
This chapter contains all the warnings and notes that should be considered for HTC 500 .
2.2
Warnings
Warning!
The machine may only be used or repaired by personnel who have received the
requisite theoretical and practical training and who have read the user manual.
Warning!
Never use the machine in an environment with a risk of explosion or fire.
Familiarise yourself with the fire-protection instructions for the working area
and follow them.
Warning!
Secure the area around the working area. No unauthorised persons should be
allowed within a 15-metre radius of the machine. If a loose object were to catch
under the grinding head, this could be flung out and cause personal injury.
Warning!
Use protective equipment such as safety shoes, safety goggles, protective
gloves, breathing mask and ear muffs.
Warning!
The machine must only be started with the grinding head down. The rotating
disc must be touching the floor and the correct tool must be fitted.
Warning!
Read through the safety instructions and the manual carefully before use.
Warning!
Always use ear muffs when using the machine.
Warning!
During grinding, the tools become very hot. Tip the machine back and allow it
to stand for a short while. Use protective gloves when removing the tools.
Warning!
Disconnect the electrical supply, when changing tools or repairing the machine.
1.0
5
Safety
HTC 500
Warning!
The machine must only be used and moved on level surfaces. There is a risk of
crushing if the machine starts to roll.
Warning!
Connect the machine to an earth fault breaker.
Warning!
Do not clean the machine using a high-pressure washer. Otherwise moisture
may penetrate electrical elements and damage the machine’s drive system.
Warning!
The machine may only be used when the splash guard is fitted.
2.3
Notes
Note!
The machine may only be used to grind and polish natural stone, terrazzo,
concrete, or other materials stated in this manual or that are approved by HTC.
Note!
Only original tools and spare parts from HTC may be used for the machine.
Otherwise neither the CE marking nor the warranty will be valid.
Note!
For the CE marking to be valid, the instructions in this manual must be
followed.
Note!
The machine should be stored in a dry, warm (plus degrees) location when not
in use.
Note!
If the machine is stored in a cold (minus degrees) location, it must be placed in
a warm (plus degrees) location for at least two hours before use.
Note!
The appropriated dust extractor must be used when dry grinding. Contact HTC
for model recommendation.
6
1.0
HTC 500
Safety
Note!
The dust extractor's suction hose must be connected to the appropriate socket
on the machine. Adjust the dust extractor to match the grinder's capacity.
Note!
Do not use the emergency stop switch to stop the machine, except in
emergencies.
Note!
As long as the emergency stop switch is pressed in, the machine cannot be
started. Reset by turning the switch 45° clockwise so that it pops out again. The
machine can then be restarted.
Note!
After removing glue and wet grinding, always lift up the grinding heads so that
they do not stick to the floor and damage machine components and the floor
when restarting.
Note!
When wet grinding, the water tank must be filled with water. Only use cold
water with no chemical additives.
1.0
7
Machine description
3
Machine description
3.1
General machine description
HTC 500
In relation to its size, the HTC 500 is a very efficient machine with a high capacity,
which makes it suitable for use in both small and large spaces. It is used to grind, coarse
grind, prepare and polish concrete, natural stone and terrazzo floors or other materials
specified in this manual or material recommended by HTC. The machine is a perfect
choice for removing coverings and for grinding concrete floors according to the HTC
Superfloor method, which is an environmentally-friendly method for grinding and
polishing concrete floors
The machine is constructed from a number of main components, see Figure 3-1, page 9 and Figure 3-2, page 10. It can be combined with weights for adjusting the
grinding pressure, which makes the machine perfect for those with high demands for
flexibility.
The handle can be set at several different angles, select a position that suits you best.
The grinding cover has two connections for an external vacuum cleaner hose for use
during dry grinding.
The machine can easily be equipped with a large number of tools, depending on the
material to be ground. For the different tools, see HTC’s Product Catalogue under the
Grinding Guide tab.
8
1.0
HTC 500
Machine description
Figure 3-1. The front of the machine
1.0
1.
Water tank
2.
Motor
3.
Weights
4.
Grinding cover
5.
Splash guard
6.
Connection, dust extractor
7.
Lifting frame
9
Machine description
HTC 500
Figure 3-2. The machine's rear
3.2
1.
Control panel
2.
Filter
3.
Tap for wet grinding
4.
Wheels
5.
Electrical connection
6.
Control cabinet
7.
Handle lock
8.
Handle
Description of controls – Control panel
The picture below shows the machine's control panel:
10
1.0
HTC 500
Machine description
Figure 3-3. Control panel
1.0
1.
EM-STOP - Emergency stop switch: Press the switch in an emergency to cut
the power to the machine.
2.
SPEED - Rotation speed: Regulates the rotational speed of the machine’s
grinding discs.
3.
ON/OFF - Start/stop the machine's functions: Turn the knob to "ON", to
activate the machine's functions and to prepare for starting. Turn the knob to
"OFF", to switch off the machine's functions.
4.
REW/FWD - Start/stop the grinding discs' rotation and direction of rotation.
Turn the knob to "0", to stop the rotation.
5.
RESET - Resetting the electronics: If the machine experiences an error, it can
be reset by pressing and holding the button in for two seconds. Any error code
is shown on the frequency converter's display inside the electrical cabinet, see
Figure 3-2, page 10. For error codes, see Electronic error codes, page 25.
6.
DUTY - Standby indicator: Indicates that the machine's functions have been
activated. Lights when the ON/OFF knob is turned to "ON".
11
Usage
HTC 500
4
Usage
4.1
General Information
The following section describes how to change tools and how to operate the grinding
machine. This section does not deal with the technical aspects of grinding, such as
selection of grinding tools, etc. For choice of tools, see HTC’s Product Catalogue under
the Grinding Guide tab.
Warning!
The machine may only be used or repaired by personnel who have received the
requisite theoretical and practical training and who have read the user manual.
Warning!
Never use the machine in an environment with a risk of explosion or fire.
Familiarise yourself with the fire-protection instructions for the working area
and follow them.
Warning!
Secure the area around the working area. No unauthorised persons should be
allowed within a 15-metre radius of the machine. If a loose object were to catch
under the grinding head, this could be flung out and cause personal injury.
Warning!
Use protective equipment such as safety shoes, safety goggles, protective
gloves, breathing mask and ear muffs.
Warning!
The machine must only be started with the grinding head down. The rotating
disc must be touching the floor and the correct tool must be fitted.
Warning!
The machine must only be used and moved on level surfaces. There is a risk of
crushing if the machine starts to roll.
Tip!
Check the minimum recommended cable area before using an extension cord.
You will find the recommended cable area under Technical data, page 28.
4.2
Handle settings
The appropriate working height is set with the help of the adjustable handle. Release the
handle, by pulling the locking pin on the handle lock, see Figure 3-2, page 10.
12
1.0
HTC 500
Usage
Adjust the handle to the desired position and secure it, by inserting the locking pin
again.
Figure 4-1. Handle settings
1. The forward position - used, for instance, for transportation, as the machine takes
up significantly less space.
2. Rear position - used for tipping the machine to make tool replacement easier.
3. Working position - the working height can be adjusted to two positions using the
machine’s adjustable handle.
4.3
Handling weights
The machine can be equipped with three weights to make it easy to change the
machine's grinding pressure, seeFigure 4-2, page 14. When all three weights are
mounted, they provide additional grinding pressure that increases the grinding effect.
When using a tool with a high removal rate, such as T-Rex™, we recommend a low
grinding pressure.
Note!
Too high a grinding pressure combined with an incorrect grinding tool may
cause damage to both the machine and the floor.
1.0
13
Usage
HTC 500
Note!
Always dismantle the weights when you change tools, to make tipping the
machine easier.
Warning!
There is a risk of crush injuries when handling the weights, as these are heavy.
Therefore, the weights should always be handled with great care.
Figure 4-2. Handling weights
4.4
Access to grinding tools
Warning!
Always remove the weights before changing tools, to prevent the machine from
tipping back.
Warning!
The tool becomes very hot during use. Tip the machine back and allow it to
stand for a short while. Use protective gloves when removing the tools.
Warning!
Disconnect the electrical supply, when changing tools or repairing the machine.
14
1.0
HTC 500
Usage
1. Set the handle to the rear position - see Figure 4-1, page 13
2. Removing the weights.
3. Tip the machine backwards carefully so that it rests on the floor.
4.5
Fitting and replacing grinding tools
Warning!
Disconnect the electrical supply, when changing tools or repairing the machine.
Warning!
The tool becomes very hot during use. Tip the machine back and allow it to
stand for a short while. Use protective gloves when removing the tools.
As the machine is equipped with the patented EZchange tool system, fitting and
replacing grinding tools is quick and easy. The tool system consists of wings on which
diamond grinding tools are fitted without the need for screws.
1.0
15
Usage
4.5.1
HTC 500
Fitting grinding tools
1. Slide the grinding tool diagonally, from above, down into the appropriate guide
slot on the tool holder, see Figure 4-3, page 16. Then push the tool fully into
the guide slot.
Figure 4-3. Fitting grinding tools
2. Lock the grinding tool into the tool holder by giving it a few light taps with a
rubber hammer - see Figure 4-4, page 16.
Figure 4-4. Locking grinding tools
16
1.0
HTC 500
4.5.2
Usage
Changing grinding tools
1. Remove the grinding tool by giving it a few light taps with a rubber hammer so
the locking mechanism releases, see Figure 4-5, page 17. Then draw the tool
up out of the guide slot.
Figure 4-5. Removing grinding tools
2. Slide the grinding tool diagonally, from above, down into the appropriate guide
slot on the tool holder, see Figure 4-3, page 16. Then push the tool fully into
the guide slot.
3. Lock the grinding tool into the tool holder by giving it a few light taps with a
rubber hammer - see Figure 4-4, page 16.
4.6
Preparations for dry grinding
Warning!
Check that the splash guard is fitted.
1.0
17
Usage
HTC 500
1. Connect a dust extractor to the machine. For dust extractor models, see under the
Suction System tab in the HTC Product Catalogue.
Note!
The dust extractor's suction hose must be connected to the appropriate
socket on the machine. Adjust the dust extractor to match the grinder's
capacity.
2. Inspect the floor carefully and remove any objects sticking up, such as
reinforcement rods or bolts, and any debris that could get caught in the machine.
3. Attach the appropriate tool to the machine, see under Fitting grinding tools,
page 16
4. Set the handle to the working position, see Figure 4-1, page 13. 4.7
Preparations for wet grinding
Warning!
Check that the splash guard is fitted.
1. Always use liquid suction when wet grinding.
Tip!
Never use a dust extractor, as blockages may develop in the dust
extractor's suction hose and filter.
2. Inspect the floor carefully and remove any objects sticking up, such as
reinforcement rods or bolts, and any debris that could get caught in the machine.
3. Attach the appropriate tool to the machine.
4. Set the handle to the working position, see Figure 4-1, page 13. Warning!
Only use cold water with no chemical additives.
5. Fill the tank with cold water.
6. Turn the tap on the left side of the machine to the open position.
7. Turn the tap to the closed position once wet grinding is finished.
18
1.0
HTC 500
4.8
Usage
Operation
The machine's functions can be controlled using the control panel - see Figure 3-3,
page 11.
During operation, the operator pushes the grinder forwards over the floor surface.
4.8.1
Standby
To activate the machine's functions, turn the ON/OFF knob to the right. When the knob
is in this position, the green Standby light (DUTY) is lit, indicating that the machine is
in standby mode.
4.8.2
Emergency stop switch
The emergency stop switch, (EM-Stop) must only be used in an emergency.
When the switch is pressed, all electrically-powered equipment on the machine are
turned off.
Note!
Do not use the emergency stop switch to stop the machine other than in
emergencies, as it decreases the lifespan of the machine's electrical
components.
Note!
As long as the emergency stop switch (EM-Stop) is pressed, the machine
cannot be started. Reset by turning the switch 45° so that it pops out again. The
machine can then be restarted.
4.8.3
Starting the machine
For a description of the control panel, see Figure 3-3, page 11.
1. Make sure the emergency stop switch is not activated.
2. Insert the cable.
3. Start the dust separator if dry grinding is to be done.
4. Turn the ON/OFF knob to the right.
5. Start the grinding discs rotation, by turning the REW/FWD knob to the desired
direction of rotation.
1.0
19
Usage
HTC 500
6. Set the speed for the grinding discs using the Speed knob.
7. The machine has now started.
4.9
Making operation easier
In order to keep the suction hose for the dust extractor and the power cable out of the
working area and/or path of the machine, the hose and cable can be arranged as shown
in the picture below.
Figure 4-6. Making operation easier
Tip!
By arranging the hose and cable as shown in the picture, you avoid disruptive
stoppages caused by having to re-position the cable and hose.
20
1.0
HTC 500
Maintenance and repairs
5
Maintenance and repairs
5.1
General Information
We recommend regular inspections of all seals.
Warning!
Disconnect the electrical supply, when changing tools or repairing the machine.
Warning!
Use protective equipment such as safety shoes, safety goggles, protective
gloves, breathing mask and ear muffs.
5.2
Cleaning
Warning!
Do not clean the machine using a high-pressure washer. Otherwise moisture
may penetrate electrical elements and damage the machine’s drive system.
5.3
•
Vacuum the electrical cabinet, if required.
•
Always clean the machine after use with a damp sponge or cloth.
Daily
•
Wash the machine if it is used for wet grinding.
•
Check for wear to the grinding tool – abnormal or uneven wear may indicate a
damaged grinding holder.
Check the tool holder and grinding holder to ensure that no damage or cracks
have arisen. Replace the parts if there is any damage.
•
5.4
Every week
•
Wash the machine.
•
Check the grinding holders. Remove the tools and run the machine in mid air at
the slowest speed. If the grinding holders oscillate or wobble significantly, they
are damaged.
Check that the upper belt is whole, by turning the large disc in one direction or
the other. If there is resistance the belt is whole, if the disc rotates freely the belt
is broken.
•
1.0
21
Maintenance and repairs
HTC 500
Tip!
Recondition all the grinding holders at the same time.
5.5
5.6
Every month (or 100 hours)
•
Tighten anything that may have vibrated loose.
•
Remove the grinding cover and check that it is undamaged.
•
Check the upper belt and replace if necessary.
•
•
Check the seals on the shafts on which the upper belt runs and replace if
necessary.
Scrape and vacuum-clean the parts shielded by the grinding cover.
•
Test run and listen for any dissonance from the bearings.
•
Clean or, if necessary, replace the filter to the electrical cabinet.
Repairs
Any repairs that may be required must be carried out by a HTC Service Centre, which
has trained service personnel and uses HTC original parts and accessories. Contact your
retailer if your machine requires servicing. For contact information, see Contact
Information at the start of the manual.
5.7
Spare parts
To ensure rapid delivery of spare parts, always specify the model, the machine's serial
number and the spare part number when ordering. Information on the model and serial
number can be found on the machine's name plate.
Information on spare part numbers can be found in the machine's spare parts list which
is available to read or print out from the accompanying digital media or HTC's website:
www.htc-floorsystems.com
Only original tools and original spare parts from HTC may be used. Otherwise neither
the CE marking nor the warranty will be valid.
22
1.0
HTC 500
Faultfinding
6
Faultfinding
6.1
General Information
This chapter describes some of the faults that may occur and how to deal with these
faults. If the fault cannot be dealt with, or if there are other faults, contact your nearest
retailer. See Contact Information at the front of the manual.
6.1.1
The machine will not start
•
•
•
•
6.1.2
•
•
•
Check the condition of the grinding holders. If the grinder holders need
reconditioning, contact HTC for information about spare parts.
Recondition the grinding holder. See under The machine vibrates or wears the
tool unevenly, page 23.
Check that the upper belt is undamaged. Try to turn the large disc in one
direction or the other, there should be resistance. If it turns freely, the belt is
broken and must be replaced.
The machine stops during operation
•
1.0
Check that there is movement between the chassis and grinding head. If
necessary, loosen one of the two pins in order to increase the play between the
chassis and the grinding head.
Check the belts, replace if necessary.
The machine is grinding at an angle
•
6.1.4
Check the error code on the frequency converter's display. For corrective
measures, see Electronic error codes, page 25.
The machine vibrates or wears the tool unevenly
•
6.1.3
Check if the emergency stop switch on the control panel is pressed. Reset the
switch by turning it 45°.
Check if the power connection is correct. Check that there is full voltage
available on the supply's phase/phases.
Check the fuses and contactors in the electrical cabinet.
Check the error code in the display on the frequency converter, see Electronic
error codes, page 25.
23
Faultfinding
6.1.5
The fuses trip frequently
•
•
6.1.6
HTC 500
The load is too high on the distribution box to which the machine is connected.
Use a different socket or reduce the speed of the machine.
Check the tools. Ensure that the correct tools are used, that they are in working
order and that they are correctly fitted.
The machine cannot cope
•
•
•
•
Heavy load. Press the handle down slightly so that the grinding head eases
slightly away from the surface being ground.
Sticky coating on the surface being ground. Run half of the machine on the
surface to be cleaned and half on the clean surface. This removes any residue
from the tools.
Check the tools. Ensure that the correct tools are used, that they are in working
order and that they are correctly fitted.
Voltage drop. Check that the cable area meets HTC’s recommendations.
Tip!
Check the minimum recommended cable area before using an extension cord.
You will find the recommended cable area under Technical data, page 28.
24
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HTC 500
Electronic error codes
7
Electronic error codes
7.1
General Information
In the event of an error, the error code is shown in the display. The most common error
codes that may occur on the frequency converter, in the control cabinet, are listed below.
In the event of other errors, contact the HTC Service Centre.
7.2
Hitachi SJ200
Error
code
Cause
Action
E01
Excess current at constant
speed
The machine is running too fast or with too great a load.
Lower the speed, lower the load by changing the position of
the weights and check your tools. Check mechanical inertia,
spin the grinding discs.
E02
Excess current during
deceleration.
See E01
E03
Excess current during
acceleration.
See E01
E04
Excess current under other
conditions.
See E01
E05
Overload.
See E01
E08
Internal EEPROM error due to Open the electrical cabinet and allow to cool. Check the filter
overheating or interference
and the cooling fans in the cabinet. Let the frequency
converter cool down before restarting.
E09
Under-voltage.
The connection cable is too long, poor connection or too
many consumers connected to the mains. Change socket, use
shorter cables and lower the speed.
E10
Internal current supply error
Contact HTC Service Centre.
E11
Internal processor fault
Reset the electronics using the Reset procedure.
E13
Anti-restart switch tripped
Check the operation when starting the machine, see Operation, page 19.
E14
Earth fault
Check the motor's cables and connections.
E15
Excess voltage
Mains voltage too high or disturbance in the mains supply.
Check the supply voltage, change socket.
E21
Excess temperature
See E08.
E22
Internal processor error
Contact HTC Service Centre.
E30
Internal communications error Contact HTC Service Centre.
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25
Electronic error codes
7.2.1
Resetting the frequency converter
•
7.2.2
HTC 500
Press and hold the "RESET" button in for two seconds.
Checking the last error code
1. Press FUNC, D01 is shown in the display.
2. Press "arrow up", until D08 is shown in the display.
3. Press FUNC, the error code is shown in the display.
4. Press FUNC again, the current frequency is shown in the display.
5. Press FUNC once again, the motor voltage is shown in the display.
6. Press FUNC once again, the voltage of the DC bus is shown in the display.
•
7.3
Press "arrow up", until D09 is shown in the display, in order to see the previous
error codes.
Omron MX2
Error
code
Cause
Action
E01
Excess current at constant
speed
The machine is running too fast or with too great a load.
Lower the speed, lower the load by changing the position of
the weights and check your tools. Check mechanical inertia,
spin the grinding discs.
E02
Excess current during
deceleration
See E01
E03
Excess current during
acceleration
See E01
E04
Excess current under other
conditions
See E01
E05
Overload
See E01
E08
Internal EEPROM error due to Open the electrical cabinet and allow to cool. Check the filter
overheating or interference
and the cooling fans in the cabinet. Let the frequency
converter cool down before restarting.
E09
Under-voltage
The connection cable is too long, poor connection or too
many consumers connected to the mains. Change socket, use
shorter cables and lower the speed.
E10
Internal current supply error
Contact HTC Service Centre.
E11
Internal processor fault
Reset the electronics using the Reset procedure.
26
1.0
HTC 500
Electronic error codes
Error
code
Cause
Action
E13
Anti-restart switch tripped
Check the operation when starting the machine, see Operation, page 19.
E14
Earth fault
Check the motor's cables and connections.
E15
Excess voltage
Mains voltage too high or disturbance in the mains supply.
Check the supply voltage, change socket.
E21
Excess temperature
See E08.
E22
Internal processor error
Contact HTC Service Centre.
E30
Internal communications error Contact HTC Service Centre.
7.3.1
Resetting the frequency converter
•
7.3.2
Press and hold the "RESET" button in for two seconds.
Checking the last error code
1. Press the "Set key" button, D001 is shown in the display.
2. Press the "arrow up" button, until D081 is shown in the display.
3. Press the "Set key" button, the error code is shown in the display.
4. Press the "arrow up" button, the frequency at the time of the error is shown in the
display.
5. Press the "arrow up" button, the motor current during the error is shown in the
display.
6. Press the "arrow up" button, the voltage of the DC bus during the error is shown
in the display.
7. Press the "arrow up" button, the operating time accumulated up to the time of the
error is shown in the display.
8. Press the "arrow up" button, the time accumulated with the voltage connected up
to the time of the error is shown in the display.
Figure 7-1. "Set key" button
For the "Set key" button, see Figure 7-1, page 27.
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27
Technical data
8
HTC 500
Technical data
The table below shows the machine’s technical data.
HTC 500 EU
HTC 500 US
HTC 500 US
Motor
4.0 kW
4.0 kW
4.0 kW
Current
10 A
16 A
22 A
Tension
3 x 380-415 V
3 x 200-240 V
2 x 115 V
Total machine weight
180 kg
180 kg
180 kg
Chassis weight
78 kg
78 kg
78 kg
Weight, grinding head
102 kg
102 kg
102 kg
Weights
3 x 9.5 kg
3 x 9.5 kg
3 x 9.5 kg
Grinding diameter
530 mm
530 mm
530 mm
Grinding pressure, with weights
95-105-115-125 kg 95-105-115-125 kg 95-105-115-125 kg
RPM
289 - 1301 r.p.m
289 - 1301 r.p.m
289 - 1301 r.p.m
Water tank
17 litres
17 litres
17 litres
Grinding discs
3 x 230 mm
3 x 230 mm
3 x 230 mm
Recommended minimum cable area
2.5 mm²
2.5 mm²
6 mm²
Sound pressure level, average value over 94 dBA
time according to ISO 3741,
measurement uncertainty according to
class 1 measuring instruments for sound
level meters.
94 dBA
94 dBA
HTC 500 JP
HTC 500 NO
HTC 500 MS
Motor
4.0 kW
4.0 kW
4.0 kW
Current
16 A
16 A
9A
Tension
3 x 200 V
3 x 200-240 V
3 x 380-415 V
Total machine weight
180 kg
180 kg
184 kg
Chassis weight
78 kg
78 kg
82 kg
Weight, grinding head
102 kg
102 kg
102 kg
Weights
3 x 9.5 kg
3 x 9.5 kg
3 x 9.5 kg
Grinding diameter
530 mm
530 mm
530 mm
Grinding pressure, with weights
95-105-115-125 kg 95-105-115-125 kg 100-110-120-130 kg
RPM
289 - 1301 r.p.m
289 - 1301 r.p.m
723 r.p.m
Water tank
17 litres
17 litres
17 litres
Grinding discs
3 x 230 mm
3 x 230 mm
3 x 230 mm
Recommended minimum cable area
2.5 mm²
2.5 mm²
2.5 mm²
28
1.0
HTC 500
Technical data
HTC 500 JP
Sound pressure level, average value over 94 dBA
time according to ISO 3741,
measurement uncertainty according to
class 1 measuring instruments for sound
level meters.
HTC 500 NO
HTC 500 MS
94 dBA
94 dBA
Figure 8-1. Height and length of the machine in millimetres
Figure 8-2. Width of the machine in millimetres
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29
Environment
9
HTC 500
Environment
HTC's products are constructed mainly of recyclable metal and plastic. The main
materials used are listed below.
Chassis
Frame
Electro-galvanised steel
Handle
Plastic covered steel
Wheels
Polyurethane-filled rubber wheels
Cover
ABS plastic
Motor
Aluminium
Grinding head
Lower cover
Aluminium
Cover
ABS plastic
External plate and steel components
Electro-galvanised steel
Other components
Steel
Electrical system
Control cabinet
Stainless steel
Cables
Copper conductors with PVC covering
Plastic components can be recycled by sorting as hard plastics. Electronics can be
deposited as electronic waste. The machine or machine components can also be returned
to HTC Sweden AB. For recycling and scrapping of components, see the applicable
national regulations for each country.
30
1.0
HTC 500
Warranty and CE marking
10
Warranty and CE marking
10.1
Warranty
This warranty only covers manufacturing defects. HTC bears no responsibility for
damage that arises or occurs during transportation, unpacking or use. In no instance and
under no circumstances shall the manufacturer be held responsible for damage and
defects caused by incorrect use, corrosion or use outside the prescribed specifications.
The manufacturer is not responsible for indirect damage or costs under any
circumstances. For complete information on the manufacturer's warranty period, see
HTC's current warranty terms.
Local distributors may have special warranty terms specified in their terms of sale,
delivery and warranty. If there is any uncertainty regarding warranty terms, please
contact your retailer.
10.2
CE marking
CE marking of a product guarantees its free movement within the EU area in
accordance with EU regulations. CE marking also guarantees that the product fulfils
various directives (the EMC Directive and other possible requirements in so-called
directives for new procedures in accordance with these regulations). This machine
carries the CE mark in accordance with the Low Voltage Directive (LVD), the
Machinery Directive and the EMC Directive. The EMC Directive states that electrical
equipment must not disturb its surroundings with electromagnetic radiation and that it
must also be immune to electromagnetic interference in the surroundings.
This machine is classified for use in environments such as heavy industry, light industry
and homes. See the Manufacturer’s Declaration of Conformity, which shows that the
machine is harmonised with the EMC Directive.
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31